British vehicle registration for Aberdeen
• paddle steamer
• Parliamentary Secretary
• (Portugal ) Partido Socialista (Socialist Party)
• (France ) Parti Socialiste (Socialist Party)
• passenger steamer
• Pastel Society
• penal servitude
• Permanent Secretary
• Biochem. phosphatidyl serine
• Botany photosystem (in PSI , PSII )
• Linguistics phrase structure
• Electronics plasma switch
• Meteorol. plus
• Police Sergeant
• Chem. polystyrene
• postscript
• Computing PostScript
• power steering
• press secretary
• private secretary
• Privy Seal
• Theatre prompt side (i.e. the actor's left)
• Biochem. protein synthesis
• Physics proton synchrotron
• Provost Sergeant
• (Italy ) Pubblica Sicurezza (police force)
• (USA ) public school
• (Australia ) public service (equivalent to the civil service)
• airline flight code for Ukraine International Airlines